{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:42.679189", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2014-Feb-16_to_2014-Feb-20_316.0_-22.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2014020000687}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "February 16 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 20 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 68300.66249948388}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["South Atlantic Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -22.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 316.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "316.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 318.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.5, -21.25], [-44.25, -21.35], [-44.18, -21.32], 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[-42.53, -21.47], [-42.0, -21.25], [-41.47, -21.47], [-41.25, -22.0], [-41.35, -22.25], [-41.25, -22.5], [-41.47, -23.03], [-41.82, -23.18], [-41.97, -23.53], [-42.5, -23.75], [-42.75, -23.65], [-43.0, -23.75], [-43.25, -23.65], [-43.37, -23.7], [-43.25, -24.0], [-43.46, -24.5], [-43.25, -25.0], [-43.47, -25.53], [-44.0, -25.75], [-44.25, -25.65], [-44.5, -25.75], [-45.03, -25.53], [-45.25, -25.0], [-45.15, -24.75], [-45.25, -24.5], [-45.15, -24.25], [-45.25, -24.0], [-45.15, -23.75], [-45.18, -23.68], [-45.53, -23.53], [-45.75, -23.0], [-45.65, -22.75], [-45.75, -22.5], [-45.53, -21.97]]]]}, "2014-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.53, -21.97], [-45.18, -21.82], [-45.03, -21.47], [-44.5, -21.25], [-44.25, -21.35], [-44.18, -21.32], [-44.03, -20.97], [-43.5, -20.75], [-42.97, -20.97], [-42.75, -21.5], [-42.85, -21.75], [-42.82, -21.82], [-42.75, -21.85], [-42.68, -21.82], [-42.53, -21.47], [-42.0, -21.25], [-41.47, -21.47], [-41.25, -22.0], 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22.538664699092067, 22.766555746146423, 22.54718884926723]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.675216985659574, 18.373519917982037, 18.854411296328237, 19.205653923506986, 22.54718884926723]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9565100077439372, -2.2884676564998756, -2.1580150832608944, -2.022534042892624, -1.9374097861787618]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4804990990949705, -3.0729036145039004, -2.834787418657527, -2.64072806587518, -1.9374097861787618]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4687786435057433, -1.744655301086351, -1.712932409781293, -1.5942100283813145, -1.4534658757576688]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8119158054530538, -2.2529451398087033, -2.0141682232189178, -1.8747271806001027, -1.4534658757576688]}}